Drew Allar's 57-yard touchdown pass to KeAndre Lambert-Smith allowed the Nittany Lions to squeak pass Indiana.
The sweep served as the opening games for the Nittany Lions' conference play.
The Nittany Lions dominated from the start of the game, recording two goals within four minutes of each other in the first half.
A goal from Van Danielson helped the Nittany Lions earned a share of the Big Ten regular-season title Sunday in Madison.
The ranking comes after the Nittany Lions' 33-24 victory over Indiana Saturday in Beaver Stadium.
The Nittany Lions lost to Michigan State in East Lansing for the first time since 2002.
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